Explanation
Given that,
Circumference of a circle =77m
We know that,
Circumference of a circle =2πr=77
⇒2×227×r=77
⇒r=77×72×22
⇒r=494
Then, Area of circular park
=πr2=227×494×494
⇒11×7×492×4
⇒77×498
⇒37738m2
or
⇒471.62m2
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